Calorimeter is an open-source (GPL-3.0-or-later) Android app by Marco Groß (Marco Gross). The APK we host is 54 MB, it needs Android 7.0 or newer, and it declares 3 permissions.
The file on this page is Calorimeter 1.2.3, 54.10 MB, and it installs on Android 7.0 and newer.
We compared the signing certificate of this build with the certificate recorded the first time de.swgross.calorimeter entered the site, and published both the file's SHA-256 and the certificate's fingerprint above so you can check the download yourself. That comparison says the file was not repackaged by someone else; it is not a review of what the app does.
The manifest inside the APK declares 3 permissions, including access to the camera. Android asks you to approve those the first time the app needs them.
Its licence is GPL-3.0-or-later. We took this build from F-Droid, and the source for this exact version is linked below.
F-Droid, who build and sign this package, flag it: it relies on a network service that is not open source. We pass that on as they recorded it — we have not tested the app ourselves.
We do not show a star rating or an install count for this page: we have no measured figure for either, and a number we cannot source is worth less than an empty field.
- Version
- 1.2.3
- Size
- 54.10 MB
- Requires Android
- API 24
- Package
- de.swgross.calorimeter
- Signature checked on
- Sep 21, 2026
- Where this file came from
- F-Droid
- Licence
- GPL-3.0-or-later
- Source code
- Source for this version
File SHA-256: 85115c4dd01caa3875d619f85c943e0d4b5223033a1437c96bb4af9e3b4baa71
Signing certificate (SHA-256): 99379801b5b331cf29436dde1d592ec6831afe55def2beb04b4c61efb4d168a3
We check that this file carries the same signing certificate as earlier releases of the same package. That shows the APK was not repackaged by someone else — it is not a security review of the app.
Declared permissions
- INTERNET
- CAMERA
- de.swgross.calorimeter.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Screenshots
